Consolidated Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Interest Income
Interest and fees on loans	$ 26,192,000	$ 26,398,000	$ 24,291,000
Interest and dividends on securities:
Taxable interest income	1,389,000	1,465,000	1,487,000
Tax-exempt interest	431,000	359,000	375,000
Dividends	165,000	166,000	135,000
Interest on deposits in other banks	135,000	782,000	410,000
Total interest income	28,312,000	29,170,000	26,698,000
Interest Expense
Interest on deposits	2,064,000	3,595,000	2,447,000
Interest on federal funds purchased		14,000	46,000
Interest on Federal Home Loan Bank advances	291,000	712,000	541,000
Interest on Junior subordinated debt	186,000	199,000	199,000
Total interest expense	2,541,000	4,520,000	3,233,000
Net interest income	25,771,000	24,650,000	23,465,000
Provision for loan losses	1,773,000	346,000	507,000
Net interest income after provision for loan losses	23,998,000	24,304,000	22,958,000
Noninterest Income
Brokerage fees	557,000	453,000	180,000
Bank-owned life insurance	360,000	366,000	361,000
Gain on sale/call of securities available for sale, net	992,000	79,000	838,000
Gain on sale of mortgage loans held for sale, net	86,000	69,000	37,000
Other income	(111,000)	437,000	158,000
Total noninterest income	6,466,000	5,974,000	6,074,000
Noninterest Expenses
Salaries and benefits	12,103,000	12,084,000	12,108,000
Occupancy	2,409,000	2,352,000	2,331,000
Furniture and equipment	776,000	1,050,000	1,012,000
Marketing and business development	487,000	648,000	610,000
Legal, audit and consulting	1,129,000	1,054,000	1,015,000
Data processing	1,432,000	1,381,000	1,292,000
Federal Deposit Insurance Corporation assessment	388,000	190,000	369,000
Merger related expenses	1,231,000
Prepayment penalty on early debt extinguishment		268,000
Other operating expenses	3,565,000	3,427,000	3,414,000
Total noninterest expenses	23,520,000	22,454,000	22,151,000
Income before income taxes	6,944,000	7,824,000	6,881,000
Income tax expense	1,067,000	1,004,000	746,000
Net Income	$ 5,877,000	$ 6,820,000	$ 6,135,000
Earnings per share, basic	$ 1.55	$ 1.80	$ 1.63
Earnings per share, diluted	1.55	1.80	1.62
Dividends per share	$ 0.50	$ 0.485	$ 0.48
Trust and Estate Fees [Member]
Noninterest Income
Total noninterest income	$ 2,249,000	$ 1,743,000	$ 1,542,000
Service Charges on Deposit Accounts [Member]
Noninterest Income
Total noninterest income	1,118,000	1,522,000	1,706,000
Intercharge Fee Income, Net [Member]
Noninterest Income
Total noninterest income	$ 1,215,000	$ 1,305,000	$ 1,252,000